UNIX IP Command Lines
Display Current Config for all NIC's: ifconfigDisplay Current Config for dc0: ifconfig dc0
Assign IP/Subnet: ifconfig dc0 inet 192.168.1.2 netmask 255.255.255.0
Assign Gateway: route delete default && route add default 192.168.1.1
Assign multiple IP's: ifconfig dc0:0 192.168.1.2
Assign second IP: ifconfig dc0:1 192.168.1.3
Disable network card: ifconfig dc0 down
Enable network card: ifconfig dc0 up